DE966503C - Blade connection for steam or gas turbines - Google Patents

Blade connection for steam or gas turbines

Info

Publication number
DE966503C
DE966503C DES36721A DES0036721A DE966503C DE 966503 C DE966503 C DE 966503C DE S36721 A DES36721 A DE S36721A DE S0036721 A DES0036721 A DE S0036721A DE 966503 C DE966503 C DE 966503C
Authority
DE
Germany
Prior art keywords
blade
steam
blades
gas turbines
binder
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DES36721A
Other languages
German (de)
Inventor
Hans Memmel
Dipl-Ing Gerhard Weller
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens Corp
Original Assignee
Siemens Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens Corp filed Critical Siemens Corp
Priority to DES36721A priority Critical patent/DE966503C/en
Application granted granted Critical
Publication of DE966503C publication Critical patent/DE966503C/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/12—Blades
    • F01D5/22—Blade-to-blade connections, e.g. for damping vibrations
    • F01D5/24—Blade-to-blade connections, e.g. for damping vibrations using wire or the like

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Description

Die Erfindung betrifft eine Schaufelbindung für Gas- und Dampfturbinen mittels federnd in den Schaufelbohrungen anliegenden Binders.The invention relates to a blade connection for gas and steam turbines by means of resilient means in the Blade holes in the adjacent binder.

Bekannt ist solche Bindung mit einem Binder, der aus mehreren nebeneinanderliegenden Drähten zusammengesetzt ist, die aus federndem Werkstoff bestehen und so gebogen sind, daß sie sich gegenseitig federnd an die Wände der Schaufelbohrungen anpressen. Die schwingenden Schaufeln gleiten aufSuch a binding is known with a binder, which consists of several wires lying next to one another is composed, which consist of resilient material and are bent so that they are mutually Press resiliently against the walls of the blade bores. The swaying blades slide open

ίο dem Binder; die durch die federnde Anpressung bewirkte Reibung des Binders an den Bohrungswänden der Schaufeln dämpft die Schaufelschwingungen. ίο the binder; due to the resilient pressure The friction caused by the binder on the bore walls of the blades dampens the blade vibrations.

Bekannt ist ferner eine Schaufelbindung mittels eines Binders, der aus einem geschlitzten Rohr besteht, das zwischen den Schaufeln aus dem ringförmigen, in einen etwa U-förmigen Querschnitt aufgebogen ist und dadurch formschlüssig und starr die Schaufeln gegeneinander distanziert.Also known is a blade binding by means of a tie consisting of a slotted tube, that between the blades from the annular, into an approximately U-shaped cross-section is bent up and thereby positively and rigidly spaced the blades from one another.

Eine Bewegung zwischen dem Binder und den Schaufeln, also eine gleitende Reibung zwischen dem Binder und den Schaufeln ist dabei nicht möglich; eine Dämpfung der Schwingungen durch Reibungsarbeit ist dabei nicht möglich.A movement between the binder and the blades, i.e. a sliding friction between the binder and the shovels is not possible; a damping of the vibrations through frictional work is not possible.

Die Erfindung besteht darin, daß der Binder in an sich bekannter Weise als geschlitztes Rohr ausgebildet ist, dessen Durchmesser vor dem Einschieben in die Schaufelbohrungen größer als der Durchmesser der letzteren ist, so daß das Rohr sich beim Einbringen in die Schaufelbohrungen federnd an die Bohrungswand anpreßt. Das Rohr ist dabei zwischen den Schaufeln nicht aufgebogen; die schwingenden Schaufeln können also auf dem Rohr gleiten, so daß die durch die federnde Anpressung bewirkte Reibung Arbeit verzehrt, also die Schwingungen dämpft.The invention consists in that the binder is designed in a manner known per se as a slotted tube is, the diameter of which is greater than that before being pushed into the blade bores The diameter of the latter is so that the pipe is when it is inserted into the blade bores resiliently presses against the bore wall. The tube is not bent up between the blades; the vibrating blades can slide on the pipe so that the resilient pressure The friction caused consumes work, so the vibrations are dampened.

Bei Laufradschaufeln wird im Lauf bekanntlich auch durch die Fliehkraft eine Pressung zwischen Schaufelbohrungswand und Binder, also eine Reibung zwischen Schaufel und Binder erzeugt, welche die Schwingungen der Schaufel dämpft. Beim erfindungsgemäßen hohlen Binder kann man diese Dämpfung noch steigern, wenn man ·— was von einem Binder, der aus einem ungeschlitzten Rohr besteht, schon bekannt ist — in das Rohr einen Draht einlegt; dessen Fliehkraft vermehrt die durch die federnde Anpressung und durch die Fliehkraft des Rohres ausgeübte Reibung und Dämpfung. Geschlitzt federnde Rohre sind an sich bekannt und bilden nicht für sich den Gegenstand dieser Erfindung.In the case of impeller blades, it is known that centrifugal force also creates a pressure between them Blade bore wall and binder, so a friction generated between the shovel and the binder, which dampens the vibrations of the shovel. When the invention Hollow ties can be used to increase this attenuation if one - what about a tie made from an unslit tube exists, is already known - insert a wire into the pipe; whose centrifugal force increases the friction exerted by the resilient pressure and by the centrifugal force of the pipe and Damping. Slotted resilient tubes are known per se and do not constitute the object in and of themselves of this invention.

Die Erfindung sei an Hand der Zeichnung erläutert. Fig. ι zeigt einen Querschnitt durch ein aus vier Schaufeln bestehendes Segment. Durch die Schaufeln ist ein Rohrstück 1 hindurchgesteckt, das, wie Fig. 2 zeigt, bei 3 geschlitzt ist. Es ist federnd und legt sich daher satt an die Bohrungsinnenwand 2 an. Ein eingelegter Draht 4 unterstützt, falls erforderlich, die Anpreßkraft zwischen Rohr ι und Bohrung 2.The invention is explained with reference to the drawing. Fig. Ι shows a cross section through a segment consisting of four blades. A pipe section 1 is pushed through the blades, which, as FIG. 2 shows, is slotted at 3. It is resilient and therefore fits snugly against the inner wall 2 of the bore. An inserted wire 4 supports if necessary, the contact pressure between pipe ι and bore 2.

Claims (2)

PATENTANSPRÜCHE:PATENT CLAIMS: 1. Schaufelbindung für Dampf- oder Gasturbinen mittels federnd in den Schaufelbohrungen anliegenden Binders, dadurch gekennzeichnet, daß der Binder in an sich , bekannter Weise als geschlitztes Rohr (1) ausgebildet ist, dessen Durchmesser vor dem Einschieben in die Schaufelbohrungen größer als der Durchmesser der letzteren ist, so daß das Rohr sich beim Einbringen in die Schaufelbohrungen federnd an die Bohrungswand (2) anpreßt.1. Blade attachment for steam or gas turbines by means of a spring in the blade bores adjacent tie, characterized in that the tie is designed in a manner known per se as a slotted tube (1) is, the diameter of which is larger than the diameter of the latter before being pushed into the blade bores, so that the When it is inserted into the blade bores, the pipe resiliently rests against the bore wall (2) presses on. 2. Schaufelbindung nach Anspruch 1 für Laufschaufeln, dadurch gekennzeichnet, daß in an sich bekannter Weise in das Rohr (1) ein Draht (4) eingelegt ist.2. blade bond according to claim 1 for blades, characterized in that in In a manner known per se, a wire (4) is inserted into the tube (1).
DES36721A 1953-12-12 1953-12-12 Blade connection for steam or gas turbines Expired DE966503C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES36721A DE966503C (en) 1953-12-12 1953-12-12 Blade connection for steam or gas turbines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES36721A DE966503C (en) 1953-12-12 1953-12-12 Blade connection for steam or gas turbines

Publications (1)

Publication Number Publication Date
DE966503C true DE966503C (en) 1957-08-14

Family

ID=7482318

Family Applications (1)

Application Number Title Priority Date Filing Date
DES36721A Expired DE966503C (en) 1953-12-12 1953-12-12 Blade connection for steam or gas turbines

Country Status (1)

Country Link
DE (1) DE966503C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1157631B (en) * 1959-04-18 1963-11-21 Gutehoffnungshuette Sterkrade Blade binding in turbo machines
US4662824A (en) * 1984-10-01 1987-05-05 Ortolano Ralph J Sleeve connectors for turbines
EP2573327A1 (en) * 2011-09-20 2013-03-27 Siemens Aktiengesellschaft Damping wire, corresponding rotor blade stage, steam turbine and producing method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US919853A (en) * 1907-10-12 1909-04-27 Westinghouse Machine Co Elastic-fluid turbine.
GB190825997A (en) * 1908-12-02 1909-06-24 Stanley John Reed Improvements in the Fastening of Turbine Blades.
US1017467A (en) * 1910-08-01 1912-02-13 Gen Electric Binder for turbine-buckets.
DE518519C (en) * 1928-12-14 1931-02-17 Bbc Brown Boveri & Cie Method and device for creating the bond between the blades of steam and gas turbines by means of tie wire and intermediate pieces
CH238025A (en) * 1943-10-05 1945-06-15 Bbc Brown Boveri & Cie Vibration dampers on the blades of turbo machinery.

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US919853A (en) * 1907-10-12 1909-04-27 Westinghouse Machine Co Elastic-fluid turbine.
GB190825997A (en) * 1908-12-02 1909-06-24 Stanley John Reed Improvements in the Fastening of Turbine Blades.
US1017467A (en) * 1910-08-01 1912-02-13 Gen Electric Binder for turbine-buckets.
DE518519C (en) * 1928-12-14 1931-02-17 Bbc Brown Boveri & Cie Method and device for creating the bond between the blades of steam and gas turbines by means of tie wire and intermediate pieces
CH238025A (en) * 1943-10-05 1945-06-15 Bbc Brown Boveri & Cie Vibration dampers on the blades of turbo machinery.

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1157631B (en) * 1959-04-18 1963-11-21 Gutehoffnungshuette Sterkrade Blade binding in turbo machines
US4662824A (en) * 1984-10-01 1987-05-05 Ortolano Ralph J Sleeve connectors for turbines
EP2573327A1 (en) * 2011-09-20 2013-03-27 Siemens Aktiengesellschaft Damping wire, corresponding rotor blade stage, steam turbine and producing method

Similar Documents

Publication Publication Date Title
AT389791B (en) SPRING-MOUNTED BRACKET FOR A MICROPHONE
DE966503C (en) Blade connection for steam or gas turbines
DE2355825A1 (en) DEVICE FOR DAMPING PRESSURE PLATE VIBRATIONS
DE589342C (en) Vibration damper for hanging on overhead lines
DE2806757A1 (en) Dynamic oscillation modulator for chimney or pylon - has resiliently applied auxiliary mass combined with resilient damping elements
DE726028C (en) Sound absorbers, especially for compressors and fans
DE2553890A1 (en) Damper for swinging carriage on cable railway - has conical end faces on piston segments in cylinder
DE628090C (en) Firing grate mounted in a swinging manner and transporting the fuel through the swinging movement
DE2610462A1 (en) ARRANGEMENT FOR VIBRATION-FREE HANGING OF DEVICES, IN PARTICULAR RECORD PLAYERS
DE611556C (en) Device for damping the mechanical vibrations of overhead lines, which is freely suspended from the line
DE202015103255U1 (en) Chair with a spiral-spring-supported seat with tilting area limitation
EP0066891B1 (en) Noise damping means for drilling rods
DE1735139U (en) CENTRIFUGE, IN PARTICULAR FOR LAUNDRY.
AT115752B (en) Acoustic sound channel with damper.
DE2065177C3 (en) Vibration damper for electrical waveguides
DE2043939A1 (en) Vibration damper
DE707779C (en) Sound absorbing and shock-reducing pad
DE2034519A1 (en) Vibration damper for electrical waveguides to suppress vibrations
DE583928C (en) Railway curvature rail
DE828059C (en) Telescopic fork for motorcycles
DE2039857A1 (en) Buffers with a foam body
DE641678C (en) Device for protecting the membrane of acoustic equipment
DE645851C (en) Silencer
DE2337431B2 (en) Tonearm with elastically attached counterweight
DE607076C (en) Device for damping the mechanical vibrations of overhead lines